PN_IS_FFIPTR      177 core/vm.c      	  || PN_IS_FFIPTR(arg)
PN_IS_FFIPTR      134 lib/aio.c        else if (PN_IS_FFIPTR(cb))    \
PN_IS_FFIPTR      143 lib/aio.c        else if (PN_IS_FFIPTR(cb))    \
PN_IS_FFIPTR      585 lib/aio.c        else if (PN_IS_FFIPTR(cb)) fs_event_cb = NULL;